Transcript for Mario Batali's Empire Gives Back to the Less Fortunate Around the World

And finally tonight, a way to celebrate your special dinner and help feed the rest of the world. It's a great idea and a famous chef is urging everyone to join in. Abc's david muir here now with our person of the week. One big hand for mario batali. My day goes until midnight. Reporter: Those long days, part of the recipe that's made him one of the most famous chefs in america. 23 restaurants, six television shows, dishing his trademark humor too. Hold on. And this week mario invited us to his kitchen at "the chew." Few of your closest friends. How are you? His shoes, the orange crocks. How many pairs? I have 40 or 50 pairs. His wife and two sons used to them. Those boys once had to wear them. The worst fear is that the children are not in the playground and you can't see them. We start the dressing them in red, orange, and yellow. How old are they now? 15, and 16. They've written their own cookbook. I always thought my wife was cooking, the boys were making dinner because my wife loosely organized iron chef challenges every night. Are any of the recipes better than yours? I think they're all better than mine. Says the proud dad. Cooking has been in his family for generation. His grandmother and the raf yoly recipe she was determined to keep a secret. My grandmother knew that people were looking. Particularly when the dou daughters-in-law were looking, she would ask them to get something from the living room. She would give you a specific number of raf yoly. You can't miss the orange on t vespa, visiting his restaurants with one simple wish from his guests, that they now take pictures with a purpose. There's a lot of people taking weird photographs of everything they do and putting them in the social world. He has a face for those photos. Put up an image of your feel and they'll match with a meal on a table a world away. 65% of american feels go to dinner once a week. Exactly. And 65% of the children in don't get any food at all. He's out to change that. A simple idea, just like this recipe. You're getting obsessed with that. One more thing, the photo. I have your new app. I downloaded it. Take a picture. Uploading those tomatoes, turning this foodie into a feeding machine. We're definitely contributing to something better than us. Serving undernourished, underprivileged children. So for his pictures with a purpose, we choose chef mario batali, our person of the week.

This transcript has been automatically generated and may not be 100% accurate.

Now Playing: Tense Moments for Passengers on American Airlines and Spirit Airlines Flights

Now Playing: {{itm.title}}

{"id":20185002,"title":"Mario Batali's Empire Gives Back to the Less Fortunate Around the World","duration":"3:08","description":"New computer app lets people donate to help people who are starving all over the world.","url":"/WNT/video/mario-batalis-empire-back-fortunate-world-20185002","section":"WNT","mediaType":"Default"}